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1. 发明专利

JPH10197687A COMPLEX REACTOR POWER GENERATION EQUIPMENT 失效
公开(公告)号：JPH10197687A
公开(公告)日：1998-07-31
申请号：JP263697
申请日：1997-01-10
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： MIURA SATOSHI , ODA SHINGO , HASHIMOTO KOJI , SUZUKI HIROSHI , SAITO MINORU , NAKAYAMA TAKASHI
IPC分类号： G21D5/02
摘要： PROBLEM TO BE SOLVED: To provide a complex reactor power generation equipment which can surely attain a drastic improvement in the steam turbine efficiency and is easily operated. SOLUTION: Steam generated in a reactor pressure vessel 1 is supplied by way of a main steam line to a high pressure turbine 2. Steam exhausted out of the high pressure turbine 2 is reheated in a steam heater 23 in a boiler 25 and supplied to a low pressure turbine 3. In this constitution, the following relation is aimed; Qb >(h3 -h2 )GS/ηbs where Qb [kcal/h] is thermal power of boiler, h3 [kcal/kg] is steam enthalpy at low pressure turbine inlet, h2 [kcal/kg] is steam enthalpy at high pressure turbine outlet, GS[kg/h] is steam flowrate in the low pressure turbine and ηbs is thermal efficiency of boiler for steam.

2. 发明专利

JPH07128493A REACTOR CONTAINMENT EXHAUST SYSTEM 失效
公开(公告)号：JPH07128493A
公开(公告)日：1995-05-19
申请号：JP27405693
申请日：1993-11-02
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： HATAKEYAMA YUKIO , SHISHIDO HIROKATSU , MIURA SATOSHI , ODA SHINGO , SAITO MINORU
IPC分类号： G21F9/02
摘要： PURPOSE:To minimize radioactive materials discharging to the air from a main stuck by tentatively keeping radioactives in a turbine condenser and reducing the radioactives through decay and recirculating operation of a gas waste processing system. CONSTITUTION:A reactor containment isolation valve is provided to a piping connecting from a reactor containment 2 to a main steam pipe. To the outlet side of gas waste processing system, a piping returning to a turbine condenser 15 and a motor valve 19 are provided. On the outlet side of a ground steam blower 24, a motor valve 27 and a vent filter 28 are provided.

3. 发明专利

JPH05240985A 失效
公开(公告)号：JPH05240985A
公开(公告)日：1993-09-21
申请号：JP3937392
申请日：1992-02-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： WATANABE SATOSHI , MIURA SATOSHI , HATAKEYAMA YUKIO
IPC分类号： G21C7/16
摘要： PURPOSE:To minimize the diameter of scram air header main pipe provided. to a backup scram mechanism of a boiling water nuclear power plant. CONSTITUTION:A scram air header main pipe 17 distributing compressed air from a backup scram mechanism 3 to individual control rod drive hydropressure system is branched to scram air header subpipes 23 and finally to scram air header branch pipes 22 for controlling the compressed air to scram valves 6, 7 provided individually to the control rod drive hydropressure system 2. In the middle of a path for releasing the compressed air for air valves 8, 9 to each branch pipes 22 by way of scram pilot valves 4, 5, orifices 19 with different flow areas are placed. When the compressed air from the control rod drive hydropressure system 2 concentrates to the scram air header main pipe 17 at scram, the air flow from each control rod drive hydropressure system 2, receiving the resistance by the orifices 19 does not simultaneously flow in the main pipe 17 due to the difference in the resistance or the flow area.

4. 发明专利

JPH0549076B2 失效
公开(公告)号：JPH0549076B2
公开(公告)日：1993-07-23
申请号：JP5662987
申请日：1987-03-13
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SUZUKI HIROAKI , KATAOKA YOSHUKI , MURASE MICHIO , INOE KOTARO , SUMIDA ISAO , YAMANARI SHOZO , MATSUMOTO MASAKI , MIURA SATOSHI , HASHIMOTO KOJI
IPC分类号： G21C7/32

5. 发明专利

JPH04172293A COOLING SYSTEM DURING REACTOR ISOLATION 失效
公开(公告)号：JPH04172293A
公开(公告)日：1992-06-19
申请号：JP29897590
申请日：1990-11-06
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YAMAMOTO KOHEI , ODA SHINGO , MIURA SATOSHI
IPC分类号： G21C15/18
摘要： PURPOSE:To increase volume margin in suppression chamber space by providing a level meter to detect the upper limit of usable zone of suppression pool and temperature meter to detect the water temperature on coolant inlet side of an auxiliary machine requiring coolant. CONSTITUTION:When the water level in a suppression pool 2 reach the upper limit of usable zone of the suppression pool 2, it is detected by a level meter 9 and the detection signal is sent to a controller 11. Meanwhile, the water temperature at the coolant inlet of a lubricant cooler 6 is detected by a temperature meter 10, and the detected signal is sent to the controller 11. The controller 11 automatically switches the coolant source to both of a condensed water reservoir tank 1 and the suppression pool 2. In this operation mode, the temperature of coolant supplied to a reactor 4 and the lubricant cooler 6 becomes low and the amount of coolant supplied from the suppression pool 2 becomes relatively large. By this, the volume margin in the suppression chamber space can be increased.

6. 发明专利

JPS6352097A BOILING WATER TYPE REACTOR 失效
公开(公告)号：JPS6352097A
公开(公告)日：1988-03-05
申请号：JP19664586
申请日：1986-08-22
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YAMANARI SHOZO , MIURA SATOSHI , MATSUMOTO MASAKI , HASHIMOTO KOJI
IPC分类号： G21C15/00 , G21C7/26 , G21C15/02 , G21C15/16 , G21D3/08 , G21D3/12 , G21D3/14

7. 发明专利

JPS6129793A Automatic decompression system 失效
标题翻译：自动分解系统
公开(公告)号：JPS6129793A
公开(公告)日：1986-02-10
申请号：JP14955084
申请日：1984-07-20
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： NAKAYAMA TAKASHI , MIURA SATOSHI , HORIUCHI TETSUO , YAMANARI SHOZO
IPC分类号： G21C9/00 , G21C9/004
CPC分类号： Y02E30/40

8. 发明专利

JPS60174484A DIRECT CONTACT TYPE HEAT EXCHANGER 失效
公开(公告)号：JPS60174484A
公开(公告)日：1985-09-07
申请号：JP2715184
申请日：1984-02-17
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YAMANARI SHIYOUZOU , MIURA SATOSHI , HORIUCHI TETSUO , TAKAHASHI TOORU
IPC分类号： F28C3/08 , F28C3/04
摘要： PURPOSE:To make the heat exchanging capacity variable by introducing two kinds of fluid having different physical properties into one single container, and mutually dispersing the primary thermal medium and secondary thermal medium, the degree of the dispersion being controlled. CONSTITUTION:While thermal medium A4 and thermal medium B5 which have different phisical properties are introduced into a tank 1 to conduct the heat exchange at the boundary surface, the thermal mediums A4 and B5 are mutually dispersed by rotating a dispersing blade 6 which is disposed inside the tank 1. The heat exchanging capacity (K value) depends on the degree of the dispersion of the mediums A4 and B5, and the K value can readily be controlled by adjusting the speed of the dispersion blade 6. The K value can be controlled without any problem such as the erosion of the secondary tubing, etc.

9. 发明专利

JPS6022691A BOILING-WATER TYPE REACTOR 失效
公开(公告)号：JPS6022691A
公开(公告)日：1985-02-05
申请号：JP13063083
申请日：1983-07-18
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： HORIUCHI TETSUO , KAMITSUMA NOBUAKI , MIURA SATOSHI , YAMANARI SHIYOUZOU
IPC分类号： G21C15/02 , G21C1/08 , G21C3/30 , G21C3/324 , G21C5/00 , G21C15/06

10. 发明专利

JPS56137273A RELEAF BENT TUBE 失效
公开(公告)号：JPS56137273A
公开(公告)日：1981-10-27
申请号：JP4031880
申请日：1980-03-31
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YAMASHIGE SHIYOUZOU , TOMINAGA KENJI , MIURA SATOSHI , UTAMURA MOTOAKI , YOKOYAMA IWAO
IPC分类号： G21C9/00 , G21C9/004 , G21C13/00

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